Shuttle guard



Nov, 30 1926.

R; C. MEISTERKNECHT SHUTTLE GUARD Filed March 9. 1926 ATTORNEYS WITNESSES Mfwuimfl abovethe shuttle race.

Patented Nov. 3%, 1 .22% s "RIQHARD c; ivrnrs'rn'nmvnonr, or Airinnnrown,rEnNsYLvAnIaf SHUTTLE GUARD. Y

Applicationfile d Mach 29', 1926. .Serial No. 98,275. i

This invention relates to a device incorporated in the lay of a loomfor preventing the shuttle from accidentally jumping out of the shuttle race and causing injury to 5 parts of the loom and also prevent possible in'ur to an 0 erator attending the loom.

- In accordance with this object of the invention the reed bar of the lay is provided with one or more devices so as to be disposed Each of the'devices is ,so constructed as to be readily responsive to the movement-of the reed bar to cause the guard member of the- ,device to drop to guarding position in which it will be locked against movement.

Thus provision 1s made forinsurance against possiblein ury to the loom or operators since the guard member will always be in.

guarding position when the loom is ation.

, Another object of the present invention is to provide a shuttle guard which will be .f-simple of construction, reliable in operation, and which, will be comparatively inexpenslve.

The nature of the present invention and its distinguishing featuresand advantages will appear when the following specification is read in connection with the; accompanying drawing, in which 1 g Figurel is a sectional view of a portion of a laywith the shuttle guard of the present invention secured in place, the same being-shown in end elevation. v 1 Fig. 2 is an elevation of the'shuttle guard on an enlarged scalewith portions being broken away, the shuttle guard being-atin oper- '20 Y tached to a movable support such asaJreed bar, portions of which'are also broken away,

and the guard member being shown locked in a guarding position. r

Fig; 3 is an end elevation of the'reed bar and shuttle guard attached thereto the guard member being "shown in guarding position :1n full lmes and in anunguarding positionin dot and dash lines. I l v Fig.4 is a sectional view taken substantially on the line H of-Fig. 2. v

Fig 5 is a sectional view of one of the 5 details. Y

loomso as to be disposed abovetheshuttle 5 race of the lay. In the drawing a portion of fment {moves to 'tl 1us limit the extent' of a lay of a looniisindicatedatllO which includes areed bar 11 and a shuttle race '12." The-shuttle isindicated at 13 in dot and dash lines. In order to prevent the shuttle from jumping out of the. shuttle race as ittravels to and fro there is provided the type of shuttle guard 14,'one 'or more of which, as stated, may be used but only one of. whichis showninthe present instance, which must. be considered to eX- tend substantially the entire length o' f the shuttle "race. The shuttle guard 14, gen- -erally stated, comprises a guard element 15 which is supported for swinging or pivotal movementby fixtures or brackets-"16; and

guard element locking and releasing means 17. The guard element15 comprises rods. 18wh1ch are 'connectedto andare held "in spaced relation by end' members 19. Each of the end members 19 carries a. stud =20 near one end thereof. Each of thefixtures or brackets 16 is of angular construction "Part 23 havifig a hole 24'." Two brackets 16 are employed for supporting the guard element 15. -The.brackets +16 :aregsimilar in construction and whenattached to the .reed. .bar '11 withthe holes 24 respective'ly of the parts'23 of thelbrackets in'alignment, the studs .20- are disposed" respectively in Inent 15"for swinging or pivotal movement to. a guarding position and "an un'guardingi position. "Each of the brackets '16 includes a stop member23" into contact with which the holes 2eto thus support the guard elethe relatedend member 19 of the guard-elm I movement of the guard element'toward' the reed bar 11 and to hold the guard element in a position in which it leans slightly to one side of'a plane transecting a line through.

the axes of the studs 20. Itfollovjvs that.

when the guard element 15 is in an unguardioo ing position as shown in 'dot'and dash lines I.

inFig. 3, movement of the reed bar 11 will cause the guard element to move on its studs 20 to a guardingposition as shown.

The locking and releasing means 17,11ereinbefore mentionedautomatically operates to control the ;m0ve'n1ent or the guard elemerit 15' as it nioves'to a guarding'position,

and also serves to" '1ock*the same in the .on one of the rods 18 limits the movement 7 off the ilevers 28 away from each other.

The portions :of :each lever 28 :at the holes 2'9 :are chamfered or Ebeveled as at 32, as shown most-clearly in Fig. 5 so asto permit the levers 28 to .be brought toward each other by manipulating the handles 30 to the positions shown in .dot and dash :lines in Fig.2. :Each of the rods 25 has'a collar or the like 33 secured thereto in virtue of which the rod will move longitudinally When its related lever 28 is moved to the .dot and'dash po sition. The locking portion 26 oiteach rod 25 is movable into and :out

1 ofa hole 3 1 in the part2?) of its related r vthe collars 33serves for projecting the looking portions 26 f the :rods 25 respectively into :the :holes 34 rvvhen the locking portions :26 are .in-zregi'stration' With :the holes 34. A stop .member 37 on the part 23 of each bracket 16 'is 'in the path o'ffmovement .of

' the end member 19 related thereto; and

bother the stop members 3.7 limit :the movewmen t of the :guard element downwardly and :also :insure the registration oft-he loching :portions :26 respectively With the holes 34. When it iis-desi'red to release the guard .elemerit l fi so that it may be anoved to wan ainguardii ng position it is only necessary to manipulate the handles 30 of .the levers 28 :to cause the Withdrawal of the locking portions 26 whereupon the guard .element may be moved to the position showman the idot and dash lines in Fig. 3.

" From the foregoing :itwill be apparent that there has'ibeen described :a shuttle :guand V embodying structural features which allows the guard element thereof to be' moved :to

a :guardin'g .position and an unguarding position that when the guard-element is inan 'unguard-ing "position to permit access to itheshuttle race for any reason whatsoever it Willbe subjected to the action of thereed .bar'} '11 when the .loom is in operation to :cause lthe guard-element to move .to a guardng posit-ion thus :lIlSllIl-Ilg ,protection 'at-all times; and that the shuttle guard Will be be able to become unlocked.

. It is to be understood that the invention is not restricted to the precise arrangement of parts shown and described, as details of construction may be modified and rearranged Without departing from the spirit of the invention, the scope of Which is limited only by the terms of the appended claims.

I claim: 7

1. The'com'ibina'tion with the of a loom, of a guard element supported above th eshut-tle race ior'movement to a guarding position and an unguardingposition, means automatically operable in response to the movement'oi the 1 guard element to a guarding position ifor locking the guard element in its guarding position, :and independent means for unlocking said guard element to permit the same to be moved to an unguardi-ng position.

2. In a loom the combination 'vv ith the reed bar of a shuttle guardarrangedabove 3. In a loom, the combination the? reed bar of a shuttle guard arranged .above the shuttle racefsaids'huttle guard zcompri's ing fixed brackets, azguard element swing ingly mounted .on said hracke'ts ior move- 18Ili3't0fi, substantially vertical position and tree to swing to a guarding position from the vertical-position in response to. the

V movement of the 51.eSClbHJ1f, members Thaving locking portions which coact respectively with portions of said ibrackets forkefiecting the movement of said anenrbers 1in1onedire'c: tion against (t-h'G .action of nne'ans having a normal tendency to urge said members in am kopposite direction to cause the projection of the locking portions into holes respectively in portions o-f :saiid brackets to dock the guard element in ;a guarding position, and means for retracting the locking portions from saidholes to permit themouement of the guard element to an unguarding aposi- Ztion. 7

' 4. A :device of the .class described; zoom- ,prisintg :fiXtLHBS, :agnard element supported .ii or swinging movements by the fixtures :so

was to be movable to aaguardingjposition and having holes in portions thereof respectively,

means on the fixtures which coacts with said locking portions in the movement of the guard element to a guarding position to cause the movement of the locking portions to unlocking positions, means for effecting the movement of the locking portions to locking positions in said holes respectively when said locking portions are in registration respectively with said holes, and independent means for retracting said locking portions from said holes.

5. A device of the class described, comprising fixtures, a guard elementsupported for swinging movements by the fixtures so as to be movable to a guarding position and an unguarding position, locking portions carried by said guard element, said fixtures having holes in portions thereof respectively, means on the fixtures which coacts with said locking portions in the movement of the guard element to a guarding position to cause the movement of the locking portions to unlocking positions, means for effecting the movement of the locking portions to locking positions in said holes respectively when said locking portions are in registration respectively with said holes, means insuring the registration of said locking portions with said holes, and independent retracting means which permits the locking portions to move to locking positions and V which serves for retracting said locking portions from said holes.

6. A device of the class described,-comprising fixtures, a guard element supported for swinging movements by the fixtures so as to be movable to a guarding position and an unguarding position, locking portions carried by said guard element, said fixtures having holes in portions thereof respectively,

means on the fixtures which coa'cts with said tion.

RICHARD c. MEISTERKNECHT'. 

